Feature Request - Audio Delay

I have a need to change the audio delay setting based on sampling freq of the audio being played.

I think this should be done as Player.SetAudioDelay and also have current audio delay returned in Player.Property.Value

If this is 'easy' for someone else to do I would really appreciate it, otherwise I will fumble around for a while (I've never done C++) and try to work it out for myself in the next few weeks then post back here for review.

I don't have a need for subtitles but for consistency it would seem make sense for the same to exist for those also.

I can only see this being used from Python but it makes more sense in json-rpc, any thoughts on that?

Thanks,
Chris